Boron Carbide
Boron carbide is produced through high-temperature smelting of boracic acid and carbonaceous materials in electric furnaces. It boasts a theoretical density of 2.52g/cm3, a melting point of 2450°C, and a micro hardness of 4950kgf/mm2. Its exceptional hardness, second only to diamond and cubic boron nitride, coupled with its high temperature resistance, acid-alkali corrosion resistance, high strength, chemical stability, and lightweight, make it an ideal material across various industries.
The company possesses five advanced boron carbide smelting furnaces with an annual production capacity of 1500 tons. Apart from meeting standards like GB/T2481, FEPA, and JIS, we also offer products ranging from ultrafine powders to engineering ceramic powders.
Available Grain Sizes
| Fractions | 0-1mm, 1-2mm,1-3mm, 1.7-2.4mm,etc. |
| F-macro grit | F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220# |
| F-micro powder | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 # |
| Fine powder | 100#-0, 200#-0, 325#-0, 60-150# ,25um-0, 10um-0, 3um-0 |
Applications
Boron carbide finds application in a myriad of areas such as precision grinding, drilling, polishing of various hard alloy tools, cutting tools, molds, gemstones, as well as the manufacturing of refractories, high-temperature resistant materials, wear-resistant welding rods, metal borides, boron alloys, engineering ceramics, boron steels, and more. Compact boron carbide can also be shaped into products like sandblasting nozzles, mechanical seals, and bulletproof materials.
- Nozzle
- Ceramic
Features
- High hardness: with a Mohs hardness ranging from 9.3 to 9.5, boron carbide is ideal for manufacturing high-hardness tools and wear-resistant parts.
- Excellent wear resistance: it exhibits outstanding wear resistance, making it suitable for abrasives, grinding materials, and industrial cutting tools.
- High temperature stability: boron carbide shows excellent stability at high temperatures, allowing for prolonged use in high-temperature environments without loss of performance.
- Good chemical stability: it possesses high chemical stability, resisting most chemical substances, enabling its use in many corrosive environments.
- Low density: with a density of approximately 2.52g/cm3, boron carbide is lightweight, making it suitable for applications requiring weight reduction, such as aerospace, automotive, and radiation protection industries.
Typical Physical Properties
| Appearance | Black powder |
| Chemical Formula | B4C |
| Bulk Density | 2.52g/cm3 |
| Phase | Solid phase |
| Solubility In Water | Insoluble |
| Melting Point | 2450℃ |
| Boiling Point | 3500℃ |
| Crystal Form | Hexahedral |
| Mohs Hardness | 9.3 |
| Knoop Hardness | 4950kgf/mm2 |
Typical Chemical Analysis
| B | 78-81 |
| C | 17-22 |
| Fe2O3 | 0.2-0.4 |
| B4C | 97-99 |
Packaging
- 25kg small bag bulk bag
- 20kg paper bag
- 20kg paper drum
- Paper drum pallet
